HEF4520 Serie
| Fr. Teil# | Beschreibung | Hersteller | Auf Lager | Operation |
| HEF4520BT-Q100J | IC BINARY COUNTER DUAL 16SOIC | 8671 |
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| HEF4520BT,652 | IC COUNTER DUAL BINARY 16-SOIC | 6267 |
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| HEF4520BP,652 | IC COUNTER DUAL BINARY 16DIP | 6884 |
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| HEF4520BT,653 | NEXPERIA HEF4520BT - BINARY COUN | 7193 |
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